Convert 5cis 270 degrees to rectangular form

The reactangular form of 5 cis 270 degrees is -5i.

Step-by-step explanation:

Rectangular form, is where a complex number is denoted by its respective horizontal and vertical components.

In “rectangular” form the vector’s length and direction are denoted in terms of its horizontal and vertical span, the first number representing the horizontal (“real”) and the second number (with the “j” prefix) representing the vertical (“imaginary”) dimensions.

The horizontal component is referred to as the real component

The vertical component is referred to as the imaginary component

5cis 270 degrees can be written as

=>

Now

= 0

= -1

Substituting these values

=>

=>

=> 5[ -i]

=> -5i

B.

Step-by-step explanation:

The rectangular form of the complex number is:

The right answer is B.

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